Seiko Epson Corporation (TSE: 6724, “Epson”) has begun accepting orders for the S2R72A11, a new USB resynchronization integrated circuit for automotive applications that supports USB 2.0, stabilizes communications, and improves connectivity with smartphones. Epson plans to produce 200,000 of the new chips per month.
USB ports, convenient and popular interfaces for in-vehicle systems, have become standard equipment on dashboards and consoles. However, USB connections tend to become less reliable as cable length increases. Epson first addressed this problem in 2009 with the release of the S2R72A4 series, a line of hub controllers that provide stable communications, improve the connectivity of in-vehicle USB devices, and are used in many in-vehicle systems.
The new S2R72A11, like Epson’s existing products, offers robust communications performance, supports the latest smartphone functions, and provides enhanced connectivity with in-vehicle systems. Smartphones are already being connected to in-vehicle systems for people to enjoy music, but apps that allow you to directly control your smartphone on a navigation system display are also gaining popularity, making smartphone connectivity essential for car navigation systems. To provide such connectivity, however, automotive ICs are required to adapt itself to unconventional connections such as USB On-the-Go*1 and issues for establishing stable connection are cropping up in the development of automotive applications.
Epson’s new IC has an integrated bus monitor that recognizes the switching of host and device terminals and automatically switches the USB communication pathway.
In addition, the new product satisfies the strict quality requirements of the automotive industry. It is compliant with AEC-Q100*2 and operates at temperatures up to 105°C. The package (SQFN5-32pin-W) is a compact 5 mm x 5 mm and occupies minimal space. A wettable flank*3 package is used to improve convenience during visual inspection of automotive equipment.
Epson is committed to helping its customers improve the performance of their products with solutions that leverage Epson’s efficient, compact, and precision technologies.
Product Specifications
| Model No. | S2R72A11 |
| USB standard | USB 2.0 |
| Supply voltage | 3.3 V |
| Built-in regulator for generating internal core voltage (1.8 V) and PLL/OSC voltage (1.8 V) | |
| Built-in charge pump for analog switch power supply | |
| Automotive standard conformance | AEC-Q100 |
| Operating temperature range | -40 °C to +105 °C |
| Other | HS transmit: low-jitter transmission waveform Supports HS transmission current regulation |
| HS receive: high reception reliability | |
| Auto USB line monitoring and control function | |
| Package | SQFN5-32pin-W (wettable flank package with a pin pitch of 0.5 mm) |
Epson is a global technology leader dedicated to connecting people, things and information with its original efficient, compact and precision technologies. With a lineup that ranges from inkjet printers and digital printing systems to 3LCD projectors, watches and industrial robots, the company is focused on driving innovations and exceeding customer expectations in inkjet, visual communications, wearables and robotics.
Led by the Japan-based Seiko Epson Corporation, the Epson Group comprises more than 81,000 employees in 85 companies around the world, and is proud of its contributions to the communities in which it operates and its ongoing efforts to reduce environmental impacts.
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Epson Europe Electronics GmbH is a marketing, engineering and sales company and the European Headquarters for electronic devices of the Seiko Epson Corporation, Japan. Since 1989 headquartered in Munich/Germany with 50 employees, Epson Europe Electronics GmbH has several European sales representatives and has a European-wide network of distributors. Epson Europe Electronics provides value added services for Semiconductors, Sensors, Sensing Systems and Timing Devices targeted to all markets like industrial, automotive, medical and communication. Epson products are recognized for energy saving, low power, small form factors and rapid time to market. Information about Epson Europe Electronics GmbH is available in the Internet under www.epson-electronics.de
